"You need to get married to get your act together!" Married life started after Kang-min was unable to win against his father's constant nagging. However, the daughter-in-law is completely unsatisfied with her sex life with Kang-min, who lacks energy and vitality. She gradually finds herself drawn to her healthy, powerful father-in-law whom she sees every day around the house... An erotic drama depicting a shocking and forbidden relationship under one roof.